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