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