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