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