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