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