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