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