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)(19,20)(21,26)(22,25)(23,27)(24,30)(28,32)(29,31)(1,2)(3,6)(4,5)(7,8)(9,11,12,15)(10,13,14,16)(17,19)(18,24)(20,27)(21,28)(22,29)(23,30)(25,32)(26,31)(2,5)(6,8)(9,10)(11,13)(12,14)(15,16)(17,20,23,24)(18,19,27,30)(21,31,22,32)(25,28,26,29)(9,11)(10,13)(12,15)(14,16)(17,21,23,22)(18,25,27,26)(19,28,30,29)(20,31,24,32)(1,2)(3,6)(4,5)(7,8)(9,10)(11,13)(12,14)(15,16)(17,19)(18,20)(21,28)(22,29)(23,30)(24,27)(25,31)(26,32) involution — undirected(1,3,4,7)(2,6,5,8)(17,22,23,21)(18,26,27,25)(19,29,30,28)(20,32,24,31)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.