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