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