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