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