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