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