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