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