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