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