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