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