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