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