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