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