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