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