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