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