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