One vertex per element, one color per generator, with an edge from x to x·s.
(5,6,8,9)(7,10,11,12)(13,14,17,23,33,25,41,42,18,22,34,38,19,24,35,40)(15,20,27,36,37,30,43,44,26,31,39,32,21,16,28,29)(1,2)(3,4)(6,9)(10,12)(13,15)(14,20)(16,24)(17,27)(18,26)(19,21)(22,31)(23,36)(25,30)(28,35)(29,40)(32,38)(33,37)(34,39)(41,43)(42,44) involution — undirected(2,4)(7,11)(10,12)(13,16,18,30)(14,21,22,37)(15,25,26,24)(17,32,34,36)(19,20,33,31)(23,39,38,27)(28,42,43,40)(29,41,44,35)(5,7,8,11)(6,10,9,12)(14,22)(15,26)(21,37)(23,38)(24,25)(27,39)(28,43)(40,42)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.