One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,4,6)(3,7,8,5)(10,11)(12,16)(17,18,22,26)(19,20,23,24)(21,25,31,32)(27,28,29,30)(1,3)(2,5)(4,8)(6,7)(9,10)(11,13)(12,15)(14,16)(17,19,22,23)(18,24,26,20)(21,29,31,27)(25,28,32,30)(9,11,13,10)(12,15,16,14)(17,20,23,26,22,24,19,18)(21,30,29,25,31,28,27,32)(3,8)(5,7)(10,11)(14,15)(17,21)(18,25)(19,27)(20,28)(22,31)(23,29)(24,30)(26,32) involution — undirected(9,12,13,16)(10,14,11,15)(21,31)(25,32)(27,29)(28,30)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.