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