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