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)(11,13)(12,14)(15,16)(17,18,22,28,23,25,21,27)(19,29,31,26,30,32,20,24)(1,3)(2,5)(4,8)(6,7)(9,10)(11,15)(12,14)(13,16)(17,19,23,30)(18,24,25,26)(20,21,31,22)(27,29,28,32)(2,6)(5,7)(9,11,12,16)(10,13,14,15)(18,25)(19,30)(20,31)(27,28)(3,8)(5,7)(11,16)(13,15)(17,20,22,19,23,31,21,30)(18,26,28,32,25,24,27,29)(10,14)(13,15)(17,21,23,22)(18,27,25,28)(19,20,30,31)(24,32,26,29)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.