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)(17,18,23,25)(19,24,28,31)(20,29,26,21)(22,27,30,32)(33,34)(35,41)(36,40)(37,45)(38,42)(39,47)(43,46)(44,48)(1,3)(2,7)(4,12)(5,13)(6,11)(8,10)(9,16)(14,15)(17,19,23,28)(18,24,25,31)(20,30,26,22)(21,27,29,32)(33,35)(34,37)(36,43)(38,45)(39,46)(40,48)(41,42)(44,47)(3,11)(7,8)(12,16)(13,14)(18,25)(19,28)(20,26)(27,32)(33,36,38,47)(34,39,42,40)(35,43,45,44)(37,46,41,48)(1,3)(2,8)(4,12)(5,14)(6,11)(7,10)(9,16)(13,15)(17,20,23,26)(18,21,25,29)(19,22,28,30)(24,32,31,27)(33,36)(34,40)(35,44)(37,46)(38,47)(39,42)(41,48)(43,45)(1,4)(2,5)(3,12)(6,9)(7,13)(8,14)(10,15)(11,16)(17,21)(18,26)(19,27)(20,25)(22,24)(23,29)(28,32)(30,31)(33,37)(34,35)(36,46)(38,41)(39,43)(40,44)(42,45)(47,48) involution — undirected(1,5)(2,9)(3,13)(4,10)(6,15)(7,16)(8,12)(11,14)(17,22)(18,27)(19,20)(21,31)(23,30)(24,29)(25,32)(26,28)(33,35)(34,41)(36,43)(37,42)(38,45)(39,48)(40,46)(44,47) involution — undirectedA 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.