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