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