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