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