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