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