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)(17,18,23,22)(19,24,29,27)(20,25,30,32)(21,31,28,26)(34,38)(39,45)(40,46)(47,48)(1,3,7,5)(2,8,6,10)(4,11,14,13)(9,15,12,16)(17,18,23,22)(19,27,29,24)(20,25,30,32)(21,26,28,31)(34,38)(35,41)(40,46)(42,43)(17,19,23,29)(18,24,22,27)(20,28,30,21)(25,26,32,31)(33,34,37,38)(35,39,41,45)(36,40,44,46)(42,47,43,48)(1,4,7,14)(2,9,6,12)(3,11,5,13)(8,15,10,16)(17,20)(18,25)(19,28)(21,29)(22,32)(23,30)(24,26)(27,31)(33,35,37,41)(34,39,38,45)(36,43,44,42)(40,48,46,47)(1,5,7,3)(2,10,6,8)(4,13,14,11)(9,16,12,15)(17,21,23,28)(18,26,22,31)(19,20,29,30)(24,32,27,25)(1,6,7,2)(3,10,5,8)(4,9,14,12)(11,15,13,16)(17,22,23,18)(19,27,29,24)(20,25,30,32)(21,31,28,26)(33,36,37,44)(34,40,38,46)(35,42,41,43)(39,47,45,48)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.