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