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