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