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