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