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