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)(11,13)(12,14)(15,16)(17,18,23,27,22,29,21,28)(19,24,20,26,31,25,30,32)(1,3,5,8)(2,6,4,7)(9,10)(11,15)(12,14)(13,16)(17,19)(18,24)(20,23)(21,30)(22,31)(25,29)(26,27)(28,32)(9,11)(10,13)(12,16)(14,15)(17,20,22,30)(18,25,29,24)(19,21,31,23)(26,28,32,27)(1,2,5,4)(3,7,8,6)(11,16)(13,15)(17,20)(18,26)(19,21)(22,30)(23,31)(24,28)(25,27)(29,32)(1,4,5,2)(3,7,8,6)(10,14)(13,15)(17,21,22,23)(18,27,29,28)(19,20,31,30)(24,32,25,26)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.