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