Couleurs d'élements sur carte

I have a table in which I have entered the GPS coordinates of all the elements in order to see their location on a map. In this same table, I have a ‘producer’ column with different company names. I would like all the elements to appear on the map with a distinct color according to the company listed in the ‘producer’ column. For example, all elements with the producer TERRA PV 1 in red; all elements with the producer TERRA PV 2 in green; etc