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)(11,13,15,16)(17,18)(19,29)(20,25)(21,37)(22,28)(23,27)(24,33)(26,36)(30,44)(31,40)(32,41)(34,45)(35,43)(38,42)(39,48)(46,47)(1,3,5,4)(2,6,8,7)(9,11)(10,13)(12,15)(14,16)(17,19,22,33)(18,24,28,29)(20,30,36,48)(21,34,23,32)(25,39,26,44)(27,45,37,41)(31,38,47,35)(40,43,46,42)(1,3,5,4)(2,7,8,6)(10,14)(11,15)(17,20)(18,25)(19,30)(21,38)(22,36)(23,35)(24,39)(26,28)(27,43)(29,44)(31,32)(33,48)(34,47)(37,42)(40,41)(45,46)(1,3,5,4)(2,7,8,6)(10,14)(13,16)(17,20)(18,26)(19,31)(21,35)(22,36)(23,38)(24,40)(25,28)(27,43)(29,46)(30,32)(33,47)(34,48)(37,42)(39,41)(44,45)(1,4,5,3)(2,7,8,6)(17,21,22,23)(18,27,28,37)(19,32,33,34)(20,35,36,38)(24,41,29,45)(25,42,26,43)(30,47,48,31)(39,46,44,40)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.