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