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