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