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