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