Vocabularies with terms on a view
Unfortunatelly for Drupal 8 @No Sssweat's solution of creating 3 seperate views (blocks) is the ONLY possible solution using views at the moment.  Then you can put them in region of your liking and with css can display them one next to the other (inline).

When Taxonomy vocabulary data not available as views fields is not an issue anymore you will be able to do it with just 1 view and grouping terms by vocabulary name.

Otherwise another solution would be to make your own custom module that gathers and displays the vocabulary terms.