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