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