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