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