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