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