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