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