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