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