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