One vertex per element, one color per generator, with an edge from x to x·s.
(2,4)(5,6,9,13,10,14,8,12)(7,15,16,19,18,20,17,11)(21,22)(23,31)(24,29)(25,28)(26,30)(27,33)(32,35)(34,36)(1,2,3,4)(5,7,8,17,10,18,9,16)(6,11,13,15,14,19,12,20)(21,23,24,33,26,32,25,34)(22,27,28,31,30,36,29,35)(6,12)(7,16)(8,9)(11,19)(13,14)(17,18)(22,28)(23,32)(24,25)(27,35)(29,30)(31,36) 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.