I'm using the Adult Attachment Scale in a regression as a continuous variable and the instructions suggest plotting the predicted means corresponding to the four attachment styles. As per the instructions in the following document. Any help with doing this with SPSS would be appreciated. How do I calculate the predicted means and how do I plot them?

https://labs.psych.ucsb.edu/collins/nancy/UCSB_Close_Relationships_Lab/Resources_files/Adult%20Attachment%20Scale.doc