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)(15,27)(16,22)(17,25)(18,33)(19,37)(20,26)(21,29)(23,32)(24,35)(28,38)(30,42)(31,40)(34,41)(36,43)(39,44) involution — undirected(1,2)(3,4)(13,15,20,16)(14,21,26,40)(17,30,19,28)(18,34,36,44)(22,33,27,43)(23,42,24,38)(25,41,37,39)(29,32,31,35)(2,4)(6,9)(10,12)(13,16,20,15)(14,22,26,27)(17,30,19,28)(18,31,36,29)(21,33,40,43)(23,41,24,39)(25,42,37,38)(32,34,35,44)(5,7,8,11)(6,10,9,12)(13,17)(14,23)(15,28)(16,30)(19,20)(21,38)(22,41)(24,26)(25,33)(27,39)(32,35)(34,44)(37,43)(40,42)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.