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