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