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