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