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