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