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