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