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