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