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