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