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