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