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