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