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