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