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