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