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