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