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