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