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