The taxonomy tags show by default in the published portal. Per Heretto ticket 10338, you can control this by updating the CSS.

If you want all of the taxonomies listed in the 3 metadata categories (Faceted Search, Personalization-Internal, and Internal Management/Filtering) then that would be a done with this code by hiding these classes:

by hiding the class="ezd-portal_metadata_root ezd-portal_metadata_hide-print" and class="ezd-portal_search-result-item_search-result-metadata" elements
 
Using the above you could assign hide or not with this class element.