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