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