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