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