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