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