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