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