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