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