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