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