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