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