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