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