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