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