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)(17,18,21,25)(19,23,26,22)(20,28,29,24)(27,30,32,31)(34,40)(35,36)(37,47)(38,48)(1,3,7,6)(2,8,5,10)(4,11,14,13)(9,15,12,16)(19,26)(22,23)(27,32)(30,31)(33,34)(35,41)(36,45)(37,42)(38,43)(39,40)(44,47)(46,48)(17,19)(18,22)(20,27)(21,26)(23,25)(24,30)(28,31)(29,32)(33,35,39,36)(34,41,40,45)(37,43,47,46)(38,44,48,42)(1,4,7,14)(2,9,5,12)(3,11,6,13)(8,15,10,16)(17,19)(18,23)(20,27)(21,26)(22,25)(24,31)(28,30)(29,32)(33,36,39,35)(34,41,40,45)(37,43,47,46)(38,42,48,44)(1,5,7,2)(3,10,6,8)(4,9,14,12)(11,15,13,16)(17,18)(19,22)(20,24)(21,25)(23,26)(27,30)(28,29)(31,32)(33,37,39,47)(34,42,40,44)(35,43,36,46)(38,45,48,41)(1,6,7,3)(2,10,5,8)(4,13,14,11)(9,16,12,15)(17,20,21,29)(18,24,25,28)(19,27,26,32)(22,30,23,31)(33,38)(34,43)(35,44)(36,42)(37,45)(39,48)(40,46)(41,47)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.