Is there any way for a requisitioner to see who the buyer will be for a particular Shopping Cart?

When creating the shopping cart, you will not see the specific buyer, but the group of buyers assigned to the purchasing group. You can view this group from the 'Item Data' tab under the SC item details: 

- Under 'Organization' (you will see a defaulted purchasing group)

- Clicking on the link 'Show Members' will show the list of Buyers associated with this purchasing group