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