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