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