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