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