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