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