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