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