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)(19,25,32,31,26,30,29,20)(1,3,4,7)(2,5,6,8)(9,10)(11,15)(12,14)(13,16)(18,24)(20,30)(21,23)(25,31)(27,28)(29,32)(2,6)(5,8)(9,11)(10,13)(12,16)(14,15)(17,19)(18,25)(20,27)(21,29)(22,26)(23,32)(24,31)(28,30) involution — undirected(11,16)(13,15)(17,20,23,25,22,31,21,30)(18,26,24,29,28,19,27,32)(10,14)(13,15)(19,26)(20,31)(25,30)(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.