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