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