(You mention that you're interviewing for a scholarship; I'm not sure if you're interviewing for schools as well but I thought I'd include what I knew just in case--there's a lot of overlap anyway!)
I generally use cover pages just to keep my prompt books straight, but they do also give them a polished look--I'd include the show logo, your name, your position on the show, the location of the show, and the season/year.
If I were interviewing SMs at ITF though I'd be looking much more for organization within the book. Do you have dividers or some other system for accessing information quickly and easily (props/costumes/cast info/etc)? Not only do they look nice, but they're useful if in an interview you're asked a question and want to reference something specific in your answer.
Is your book neat in general? I think it's useful to have a combination of both "complete" things (very neat, polished pieces of paperwork) and "used" things (like a run sheet with check marks), because the combination shows how you think and work. Don't fabricate stuff that doesn't exist, but if you're trying to figure out what to include and what to leave out and you have some run sheets or similar that have actually been used, stick them in.
If you have some decent-quality photos of your show, I personally think it would be a good idea to include them (maybe in a "photos" section). It's likely that at least some of the people you are interviewing with will not be stage managers and they will have an easier time responding to images than to your paperwork. Plus, these images can raise questions that would not have been raised from just your paperwork--the rounds are way too fast for them to sit and read your props tracking, but if they see a picture of a set with lots of props they could be driven to ask about how you kept them all straight.
I interviewed at ITF a few years ago and got into my top choice school, so unless they've drastically changed the format, I can give you a few specific tips on that as well. First, it's quite a bit like speed dating: you only have a few minutes with each group of schools, they come to your table in groups of three or four schools (so maybe ten people) at a time and you give them your "spiel". I don't remember the time limit, but if you have it somewhere, I'd practise this spiel, with a friend asking questions if possible. When I did it, at least, I talked them through a highlights version of my book, then they asked a few questions, then a bell went off and the groups rotated and I did it over again.
Next, callbacks. Don't feel like you have to go to all of them. The most time-effective option for you is to take the list of schools to which you were called back, Google them, and then make callback appointments (or drop by, IIRC it depends on the school) with only the ones that interest you. And if a school that really interested you didn't call you back, stop by their booth anyway (not during callback slots) and chat with them. It can't hurt!