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