There is information here -
http://www.capetocapetrack.com.au/There are a couple of options in the transport section; and many of the providers in the accommodation section can organise transfers.
Most of the transport services appear to be local, you may have to contact them to see if they will do end-to-end transfers; otherwise just stay at a different place each time.
I am organising a transfer with Cy at the southern end, but will be camping most of the way through.