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