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