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