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