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