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