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