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