One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,4)(3,7,8,6)(9,10)(11,15)(12,14)(13,16)(19,25)(23,26)(27,31)(30,32)(1,3,5,8)(2,6,4,7)(9,11,14,13)(10,15,12,16)(17,18,22,20)(19,23,25,26)(21,24,29,28)(27,30,31,32)(9,12,14,10)(11,15,13,16)(17,19,22,25)(18,23,20,26)(21,27,29,31)(24,30,28,32)(9,13,14,11)(10,15,12,16)(1,4,5,2)(3,7,8,6)(17,20,22,18)(19,26,25,23)(21,24,29,28)(27,30,31,32)(17,21,22,29)(18,24,20,28)(19,27,25,31)(23,30,26,32)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.