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