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