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