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