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