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