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