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)(11,14)(12,16)(13,15)(17,18,24,23)(19,25,21,26)(20,22,27,32)(28,29,31,30)(1,3,5,4)(2,6,8,7)(9,11,13,12)(10,14,15,16)(17,19,24,21)(18,25,23,26)(20,30,27,29)(22,28,32,31)(1,3,5,4)(2,7,8,6)(10,15)(14,16)(17,20,24,27)(18,22,23,32)(19,28,21,31)(25,29,26,30)(9,12,13,11)(10,16,15,14)(17,21,24,19)(18,26,23,25)(20,29,27,30)(22,31,32,28)(1,4,5,3)(2,6,8,7)(17,22,24,32)(18,27,23,20)(19,29,21,30)(25,31,26,28)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.