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