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