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