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