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