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