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