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