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