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