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