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