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