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