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