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