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