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