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