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