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