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