You have 2 layouts that you can display sponsors with. One of them, uses a simple alphabetical listing, with all sponsors looking the same visually on the page. The second option is to use Tiers. This Tiered layout allows you to group certain sponsors together, that perhaps are eg. Gold Sponsors, and therefore allowing them a more prestigious position of the page. 

To use the Tiered View, you must have the Sponsor's Levels set up. To Create the Tiers: See the steps from the Become A Sponsor instructions.

This setting is for advanced user / higher level access users. Please check with your Show Admin for details or changes. 

To change from the default Standard layout to a Tiered layout; 

1. Go to CMS > Appearance
2. Choose the active layout from the layouts tab
3. Click Edit
4. Choose Other Settings
5. Go to Show Sponsors Settings
6. From the Sponsors Layout Type, change from Standard List to Tiered List
7. Click Save / Save & Close