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