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