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