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