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