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