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