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