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