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