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