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