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