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