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