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