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