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