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