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