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