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