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