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