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