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