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