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