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