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)(19,22)(20,26)(21,27)(23,25)(24,28)(29,30)(31,32)(33,34,39,36)(35,42,38,40)(37,44,46,41)(43,47,45,48)(2,6)(7,9)(8,13)(14,15)(17,19,24,23)(18,25,28,22)(20,29,21,31)(26,32,27,30)(33,35,39,38)(34,40,36,42)(37,43,46,45)(41,47,44,48)(1,2)(3,7)(4,8)(5,6)(9,11)(10,14)(12,13)(15,16)(17,20,24,21)(18,26,28,27)(19,29,23,31)(22,30,25,32)(33,36,39,34)(35,40,38,42)(37,44,46,41)(43,47,45,48)(1,2)(3,7)(4,8)(5,6)(9,11)(10,14)(12,13)(15,16)(17,21,24,20)(18,27,28,26)(19,29,23,31)(22,30,25,32)(33,37)(34,41)(35,43)(36,44)(38,45)(39,46)(40,47)(42,48)(1,3)(2,7)(4,10)(5,11)(6,9)(8,14)(12,16)(13,15)(17,22,24,25)(18,19,28,23)(20,30,21,32)(26,29,27,31)(1,4,5,12)(2,8,6,13)(3,10,11,16)(7,14,9,15)(17,23,24,19)(18,25,28,22)(20,29,21,31)(26,30,27,32)(33,38,39,35)(34,40,36,42)(37,45,46,43)(41,47,44,48)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.