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