Your rights if accused of sexually assaulting another student under your college's sexual misconduct policy will be dictated by the school in question. This is if the case is being adjudicated not under the school's Title Nine policy but rather under the school's sexual misconduct policy. Different schools will have different rights and obligations. Under such a policy, it's very important to be familiar with your school's policy. At a minimum, a person should be able to say, review evidence, or documentation submitted in a given case, should have the right to present witnesses.
Some schools will allow with witnesses to be questioned, adverse witnesses to be questioned, either through written means or otherwise through like say a live hearing. The rights will depend on the given school as to how a case would be adjudicated and addressed. Some schools will have a hearing process, some schools will have an investigation process. An experienced attorney-advisor will know how to best understand your rights and also how to maximize your rights so that you can best present and defend against allegations of sexual assault at college.