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