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