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