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