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