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