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