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