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