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