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