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