Styling different categories on same page

Hi.
I’m have a page that is pulling in 2 categories – News and Events.
I would like to add a class to the different posts so that I can style them differently. How do I do that?

Here’s the code I’m using – Can I add another class to the_title H2?

<?php
if ( is_single() ) {
the_title( '<h2 class="entry-title"> ','</h2>' );
        } else {
the_title( '<h2 class="entry-title" <a href="' . esc_url( get_permalink() ) . '" rel="bookmark">', '</a></h2>' );
         }
if ( 'post' === get_post_type() ) : ?>

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Thanks in advance