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