Most colleges and universities (Niagara University included) promote extracurricular activities as a way of getting students "engaged." That is, we want you to have fun, and feel like you're part of a worthwhile community while you're here. Athletics, clubs, volunteering can all be great ways to take a break from classes, and they can form valuable parts of your professional network as you set out on your job hunt.
Even if you weren't class president, be sure to showcase your extracurriculars on your resume. Employers want to know about the skills you've gained, the leadership you've shown, and they want to know that you've got a well-rounded set of interests.