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