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