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