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