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