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)(17,18,23,26)(19,27,20,24)(21,22,25,32)(28,31,30,29)(33,34,39,44)(35,45,47,40)(36,37,42,41)(38,43,46,48)(1,3,7,5)(2,8,6,10)(4,11,14,13)(9,15,12,16)(19,20)(24,27)(28,30)(29,31)(33,35)(34,40)(36,46)(37,43)(38,42)(39,47)(41,48)(44,45)(17,19,23,20)(18,24,26,27)(21,28,25,30)(22,29,32,31)(33,36,39,42)(34,41,44,37)(35,46,47,38)(40,48,45,43)(1,4,7,14)(2,9,6,12)(3,11,5,13)(8,15,10,16)(17,20,23,19)(18,24,26,27)(21,30,25,28)(22,29,32,31)(33,34)(35,45)(36,41)(37,42)(38,48)(39,44)(40,47)(43,46)(1,5,7,3)(2,10,6,8)(4,13,14,11)(9,16,12,15)(17,21,23,25)(18,22,26,32)(19,28,20,30)(24,29,27,31)(33,37,39,41)(34,42,44,36)(35,43,47,48)(38,45,46,40)(1,6,7,2)(3,10,5,8)(4,9,14,12)(11,15,13,16)(17,22)(18,25)(19,29)(20,31)(21,26)(23,32)(24,30)(27,28)(33,38,39,46)(34,43,44,48)(35,42,47,36)(37,45,41,40)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.