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