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