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