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