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