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