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