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