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