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