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