One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,4,8,5,7,11,14)(3,6,10,13,9,12,15,16)(17,18)(19,28,31,44)(20,25)(21,35)(22,24)(23,30,38,47)(26,33)(27,34)(29,45,32,42)(36,43,48,39)(37,41)(40,46)(1,3)(2,6)(4,10)(5,9)(7,12)(8,13)(11,15)(14,16)(17,19)(18,23)(20,29)(21,36)(22,31)(24,38)(25,39)(26,42)(27,43)(28,41)(30,46)(32,34)(33,47)(35,44)(37,48)(40,45) involution — undirected(3,9)(6,12)(10,15)(13,16)(18,24)(23,38)(25,27)(26,40)(28,44)(35,41)(39,43)(42,45) involution — undirected(2,7)(6,12)(8,14)(13,16)(17,20,22,34)(18,25,24,27)(19,29,31,32)(21,33,37,46)(23,39,38,43)(26,41,40,35)(28,45,44,42)(30,36,47,48)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.