Previous Next for Same Category?

I’m trying to change Previous Next so that it can only navigate between posts in the same category.

I tried to use the

<li class = "prev"> <? php previous_post_link ('% link', 'Previous Post', TRUE); ?> </li>
       <li class = "next"> <? php next_post_link ('% link', 'Next Post', TRUE); ?> </li>

but he doesn’t use the native buttons of the theme and I wanted to take advantage of them so as not to make the site very polluted.

It seems to me that the button code is this
<? php wp_link_pages (array ('before' => '<div class = "post-pages">>. esc_html __ (' Pages: ',' gridzone '),' after '=>' </div> ')) ; ?>

but how do they navigate only between posts in the same category?

The page I need help with: [log in to see the link]