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