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