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