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