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