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