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