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