WordPress – user access to content

I am new to wordpress, but I am looking for some quite simple stuff

On my page, I would like to have a user Group for each cateogy. So, for example, for the everything under the category “soccer” there should be a “soccer” user who can edit the content on the soccer pages. The user should only have editor rights on Soccer so other pages can not be edited

I have found a lot of user access plugins, but when I try those, they are then hiding the “soccer” page, when normal visitor is looking at the page. Only when logging in, than the Soccer page Again can be seen.

If there a tutorial etc on how to do this, as it should be a quite simple thing to setup(at least in other cms systems I have worked with)