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