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