How do I create a simple bar plot? (non-clustered)

Hello,

I am having a great difficulty creating a simple bar plot (not clustered).  I have attached a picture of what I currently have.  What I am trying to do (with poor success) is to create an identical plot to what I currently have but change certain column colors.  Basically I am trying to color coordinate certain columns together (4 groups, good=green (first 5), medium=blue (next 7), bad=red (next 6), other=grey(all remaining).  I have tried adding each as their own series but then the columns cluster together and I lose the x-axis label. I feel like this should be incredibly simple, yet I am having extreme difficulty producing what I want.

Please let me know if I need to articulate more.  Thank you for your help!