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