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