One vertex per element, one color per generator, with an edge from x to x·s.
(2,6)(7,8)(9,10)(11,14)(12,16)(13,15)(17,18,21,25,22,26,29,32,20,23,28,30,19,24,27,31)(1,2,5,6)(3,7,4,8)(9,11,13,12)(10,14,15,16)(18,23)(24,26)(25,30)(31,32)(1,3,5,4)(2,7,6,8)(9,12,13,11)(10,14,15,16)(18,23)(24,26)(25,30)(31,32)(1,4,5,3)(2,7,6,8)(17,19,20,22)(18,24,23,26)(21,27,28,29)(25,31,30,32)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.