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