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)(15,25)(16,21)(17,22)(18,23)(19,24)(20,28)(26,43)(27,41)(29,37)(30,40)(31,36)(32,39)(33,35)(34,42)(38,44) involution — undirected(1,2,4,3)(6,9)(10,12)(15,17)(16,29)(19,27)(20,35)(21,37)(22,25)(24,41)(26,44)(28,33)(30,31)(36,40)(38,43)(1,3,4,2)(5,7,8,11)(6,10,9,12)(13,15)(14,20)(16,30)(17,27)(18,28)(19,33)(21,38)(22,24)(23,25)(26,34)(29,44)(31,32)(35,41)(36,42)(37,40)(39,43)(13,16,18,29)(14,21,23,37)(15,26,28,31)(17,30,33,44)(19,34,27,32)(20,36,25,43)(22,40,35,38)(24,42,41,39)(13,17,18,33)(14,22,23,35)(15,27,28,19)(16,31,29,26)(20,24,25,41)(21,36,37,43)(30,32,44,34)(38,42,40,39)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.