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