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