Color stripchart according to column (3 objects)

I've had some trouble downloading ggplot on my R, so I am looking for a way to do it without it. I saw this post did it with baseR: Color points according to column - #5 by nirgrahamuk (but his points were numeric, where as mine are each point associated with a non-numeric label, if that makes sense)

Sorry I know that adds another layer of problem solving, but I thought I may be able to do it without ggplots, maybe using objects and data frames instead? Which is what I tried (in the original post). I may just have to troubleshoot my ggplot download if not!