There are no icons for groups provided by default so you would have to create your own. Then you would need to write the NAML code required to display them where you wanted them. You'd probably need to make them significantly taller than a line of text to make them distinguishable and that could mean rewriting more code than that simply to display the icons.
In short, all perfectly possible if you have the the graphic and NAML skills.
Volunteer Helper - but recommending that users move off the platform!
Once the admin for GregHelp now deleted.