I support diversity, but what do I actually do about it?

You say you support diversity. Good — so does nearly everyone you work with. That agreement costs nothing, because it points at no specific Tuesday afternoon, no specific meeting, no specific name on a list. A value that never touches your calendar is not a value. It is a preference you have never been tested on. The honest problem is not your heart. It is that "diversity" is a word large enough to agree with and too large to act on. You need five or six plain habits — who you call before a decision, who reviews the first draft, who gets credit named aloud — not a feeling you carry around and show no one. You are not doing this alone. Your pod can check each other's habits, not just each other's intentions. Say the specific thing you will do differently this week, and let someone else watch whether you did it.