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