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