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