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