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