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