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