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