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