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