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