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