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