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