Research the benefits of cultural diversity, and then either provide an overview of these positive contributions or focus on how to maximize one or two specific benefits. This topic is a particularly good one if your school is hostile to diversity or if students openly debate whether the school should embrace more diversity.
Diversity isn't always easy. Language barriers, disputes over religious beliefs and cultural differences in communication styles can all make embracing diversity challenging and a bit uncomfortable. Outline a few common challenges associated with cultural diversity, and then address ways to remedy these concerns. For example, you might suggest your college offer a course in cultural competence or that students from foreign countries be offered courses in American culture.
Virtually every university lists diversity as a key goal, but embracing diversity can be challenging, particularly at a school that has a history of not being diverse. Offer practical suggestions for how your school might increase diversity. For example, your school might recruit students from historically black high schools, publish application materials in multiple languages, offer scholarships to immigrants or set specific diversity targets.
No two cultures are alike, which is why cultural diversity brings so much to a college campus. Try discussing the values and contributions of a specific culture. This idea can be particularly interesting if that culture is either a constant presence on your campus or the victim of discrimination. For example, if your school tends to be hostile toward people from the Middle East, you might pick a specific Middle Eastern country and then talk about that country's culture.