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