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