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