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