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