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