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