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