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