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)(17,18,23,28,24,29,22,27)(19,26,30,21,20,31,32,25)(1,3)(2,5)(4,8)(6,7)(10,13)(11,15)(17,19,24,20)(18,25,29,21)(22,30,23,32)(26,28,31,27)(2,6)(5,7)(9,10)(11,14)(12,13)(15,16)(17,20,24,19)(18,26,29,31)(21,27,25,28)(22,30,23,32)(3,8)(5,7)(10,13)(14,16)(17,21,23,31,24,25,22,26)(18,20,28,32,29,19,27,30)(9,11,12,15)(10,14,13,16)(17,22,24,23)(18,27,29,28)(19,30,20,32)(21,31,25,26)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.