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