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