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