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)(11,13)(12,14)(15,16)(17,18,22,20)(19,23,21,24)(27,31)(29,32)(1,2)(3,7)(4,8)(5,6)(9,11,12,15)(10,13,14,16)(17,19,22,21)(18,23,20,24)(2,6)(4,7)(9,10,12,14)(11,13,15,16)(17,20,22,18)(19,23,21,24)(25,26,28,30)(27,29,31,32)(1,3)(2,4)(5,8)(6,7)(9,10)(11,13)(12,14)(15,16)(17,19,22,21)(18,24,20,23)(25,27)(26,29)(28,31)(30,32)(1,4)(2,3)(5,7)(6,8)(9,11)(10,13)(12,15)(14,16)(17,21,22,19)(18,23,20,24)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.