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