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