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