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