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