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