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