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