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