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