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