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