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