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