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)(19,24,26,21)(20,28,31,25)(27,32,29,30)(6,8)(9,11,13,16)(10,14,15,12)(18,23)(21,24)(25,28)(30,32)(5,6,7,8)(9,12)(10,11)(13,14)(15,16)(17,19,22,26)(18,24,23,21)(20,29,31,27)(25,32,28,30)(1,2,3,4)(9,11)(10,12)(13,16)(14,15)(17,20)(18,25)(19,27)(21,32)(22,31)(23,28)(24,30)(26,29)(9,12)(10,11)(13,14)(15,16)(17,21,22,24)(18,26,23,19)(20,30,31,32)(25,27,28,29)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.