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