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)(17,18,23,27,22,26,21,25)(19,20,28,30,29,31,24,32)(1,2,5,6)(3,7,4,8)(9,11,14,10)(12,16,13,15)(17,19,23,28,22,29,21,24)(18,20,27,30,26,31,25,32)(1,3,5,4)(2,7,6,8)(9,12,14,13)(10,15,11,16)(17,20)(18,24)(19,27)(21,32)(22,31)(23,30)(25,29)(26,28)(1,3,5,4)(2,8,6,7)(9,13,14,12)(10,15,11,16)(1,4,5,3)(2,8,6,7)(17,21,22,23)(18,25,26,27)(19,28,29,24)(20,30,31,32)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.