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