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