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