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