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