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