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