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)(11,15)(12,13)(14,16)(17,18)(19,22)(20,24)(21,23)(25,26,29,32)(27,28,31,30)(2,3)(6,7)(9,10,13,12)(11,14,16,15)(17,19,21,24)(18,22,23,20)(27,31)(28,30)(4,8)(6,7)(10,12)(14,15)(17,20)(18,19)(21,22)(23,24)(25,27,29,31)(26,30,32,28)(1,3,5,2)(4,6,8,7)(9,11,13,16)(10,14,12,15)(17,19)(18,20)(21,24)(22,23)(25,28,29,30)(26,31,32,27)(1,4,5,8)(2,6,3,7)(9,12,13,10)(11,14,16,15)(17,20)(18,19)(21,22)(23,24)(25,26)(27,30)(28,31)(29,32)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.