An individual user could mute the category to hide it if it’s something they don’t want to see.
Outside of that, there’s currently no way to exclude a higher Trust Level group from seeing a category that’s visible to lower Trust Levels (it isn’t something that has been requested frequently, so we don’t have any immediate plans to add such a feature).
If this is something you absolutely need you’ll either have to figure out another way of accomplishing what you’re looking for, or develop a custom plugin.