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