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