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