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