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