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