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