Years ago, they used to play one of the rounds on LBV. As a matter of fact, The year Tigger Woods turned pro, we sat on our deck at OKW and watched him play through the hole we were on. They have changed the format of the tournament since then and now only play on the Palm and Magnolia.
I don't know if they have any special shuttles set up for the tournament (I would be surprised if they didn't), however, it is not to difficult to get to the Palm/Magnolia area. A taxi is probably the most direct method. Probably $20.00 max from anywhere on property. The Palm/Mag are pretty easy walking distance from the GF and Poly. Take a resort bus to either of those locations and a short walk and you are there. The Shades of Green resort is right at the golf courses (it used to be the Golf Resort/Disney Inn), but those buses are operated by the Military since Shades of Green is a Military R&R site.