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