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