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