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