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