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