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