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