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