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