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