There is no easy switch to turn the graphics on or off. Because there is no force graphics element in the tire (to my knowledge). So it has to be created in the template builder.
Now I think that it is a very bad idea to fipple with the standard tire templates as they often change from version to version of Adams when new functionality is introduced.
So instead of adding force graphics to the tire (that would show as force and torque on the wheel center, not at the tire contact patch), add force graphics to the spindle joint in the suspension template.
So open the suspension template in the template builder.
Use the Tools -> Command Navigator -> geometry -> create -> shape -> force
Switch from "Force Element Name" to "Joint Name". Locate the spindle revolute joint that is likely named ._macpherson.jolrev_spindle_upright or something like that, and use that for the joint name.
For the "Applied at Marker Name", enter (._macpherson.jolrev_spindle_upright.j_marker_name)
Then repeat this for the right side (as you do this from the command navigator with non-car elements, there is no symmetry in this).
You could do all of this directly in the subsystem, but then it will be gone next time you open your assembly.
That's said, if you are using FTire, you can get really detailed force graphics at the tire contact patch through the FTire animation.