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