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