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