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