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