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