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