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