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