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