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