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