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