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