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