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)(17,18,22,27,23,28,20,25)(19,29,21,26,30,32,31,24)(1,3)(2,5)(4,8)(6,7)(9,10)(11,13)(12,15)(14,16)(17,19)(18,24)(20,21)(22,31)(23,30)(25,29)(26,28)(27,32) involution — undirected(2,6)(5,7)(9,11,13,10)(12,15,16,14)(17,20,23,22)(18,25,28,27)(19,21,30,31)(24,29,26,32)(3,8)(5,7)(10,11)(14,15)(17,21,20,19,23,31,22,30)(18,26,25,29,28,24,27,32)(9,12,13,16)(10,14,11,15)(17,20,23,22)(18,25,28,27)(19,21,30,31)(24,29,26,32)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.