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