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