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