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