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