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