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